Nitrogen is liberated by the thermal decomposition of :
A
NH4NO2
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B
NaN3
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C
(NH4)2Cr2O7
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D
All of these
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Solution
The correct option is D All of these (NH2)2Cr2O7Δ−−−−−−−−−−−−−−−→thermaldecompositionCr2O3+N2+4H2ONH4NO2Δ−−−−−−−−−−−−−−−→thermaldecompositionN2+2H2O2NaN3Δ−−−−−−−−−−−−−−−→thermaldecomposition2Na+3N2